# Doodo vs Kernels

The clearest difference is rating: Kernels at 4.7 against Doodo's 4.3. Kernels also leads on review sentiment (83% vs 67%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Kernels holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 6 and 10 respectively. Written reviews point the same way: 67% of Doodo's written reviews are positive against 83% of Kernels's.

Doodo ships an update every 3 months, Kernels every 2 months. The most recent releases landed on September 4, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Doodo | Kernels |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/doodo-private-search-engine/id1551804341/reviews) | **[4.7 (10 ratings)](https://appshunter.io/ios/app/kernels-private-search-engine/id1591632823/reviews)** |
| Number of ratings | 6 | **10** |
| Positive reviews | 66.7% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 21 MB | 30 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Doodo global initiative private limited](https://appshunter.io/developer/1551804343) | [Funnls LLC](https://appshunter.io/developer/1591632825) |

## What reviewers say

### Doodo

[App page](https://appshunter.io/ios/app/doodo-private-search-engine/id1551804341)

This search engine prioritizes user privacy by delivering accurate results without saving search history. It aims to provide a clean and improved browsing experience, challenging the notion that internet privacy is impossible.

**Highlights:** Accurate search results, No search history saved, Privacy-focused, Improved design, Secure browsing

**Features:** macOS Compatibility

**In-app purchases:** none


### Kernels

[App page](https://appshunter.io/ios/app/kernels-private-search-engine/id1591632823)

This app acts as a personal search engine, allowing you to index and quickly find your saved text, web pages, images, emails, and documents. It prioritizes user privacy and synchronizes your data across devices for easy access anywhere. It helps boost productivity by making your digital information instantly searchable.

**Highlights:** Personal search index, Save text, web pages, images, Search emails and documents, Privacy-focused indexing, Cross-device synchronization, Boost productivity and organization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Doodo free?

Doodo is free to download, with no in-app purchases.

### Is Kernels free?

Kernels is free to download, with no in-app purchases.

### Which has better reviews, Doodo or Kernels?

Kernels is rated higher. Doodo averages 4.3 out of 5 from 6 ratings, while Kernels averages 4.7 from 10 ratings.

### Do Doodo or Kernels have ads?

Neither Doodo nor Kernels shows ads.

### Which is updated more often, Doodo or Kernels?

Doodo ships an update every 3 months, and Kernels every 2 months. Most recently, Doodo was updated on September 4, 2026 and Kernels on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*